Posted by oldtanker on September 20, 2017 at 09:11:01 from (66.228.255.59):
In Reply to: Liberty Ships 9/19/42 posted by Ultradog MN on September 20, 2017 at 03:43:52:
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Actually at the time that Liberty ship production exceeded losses we were not that good a finding Uboats. Early on ADM Donitz made the boats report in daily. We, the allies used radio direction finding to try to steer the convoys around known locations of Uboats. It wasn't until we could cover the entire routes with air searches that the Uboat arm admitted that they had lost the fight. By 1944 airborne radar was the key. They could detect a Uboat on the surface and attack. Good short read on this subject: https://en.wikipedia.org/wiki/Hunter-killer_Group
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